The shooting occurred at about 12:30 a.m. in the 6300 block of South Nashville Avenue, police News Affairs Officer John Mirabelli said.

The officer was shot in the chest and the wrist, Mirabelli said.

The officer was able to retun fire, Supt. Garry McCarthy said in a brief press conference outside Advocate Christ Medical Center. The officer believes he may have struck the offender, but was not positive.